Specifications - Crown CE 4000 Reference Manual

7 Specifications

Note: All measurements are in Stereo mode with 8-ohm loads and an
input sensitivity of 26-dB gain at 1-kHz rated power unless otherwise
specified.
Power
Output Power: (see Figure 7.1).
Load Impedance: Safe with all types of loads. Rated for 2, 4
and 8 ohms in Stereo mode, 4 and 8 ohms in Bridge-Mono
mode.
Voltage Gain to 1-kHz, 8-ohm rated output:
39.0-dB gain at 0.775-volt sensitivity;
33.8-dB gain at 1.4-volt sensitivity;
26-dB gain at 3.46-volt sensitivity.
Required AC Mains: 50/60 Hz , 100-240VAC (±10%).
AC Line Current,
100 Volts: 8.5 A;
120 Volts: 7.1 A;
230-240 Volts: 3.7 A;
At Idle: Amp draws no more than 140 watts.
AC Line Connector: 15A IEC Connector with Country
Specific Cord and Plug.
Performance
Frequency Response: ±0.25 dB from 20 Hz to 20 kHz at 1
watt (See Figure 7.2).
Phase Response: ±15 degrees deviation from linear phase
from 20 Hz to 20 kHz at 1 watt.
Signal to Noise Ratio,
A-Weighted, 20 Hz to 20 kHz:
Better than 102 dB below rated 1-kHz power;
Total Harmonic Distortion (THD): 1-kHz rated power, 0.5% or
less THD from 20 Hz to 20 kHz.
Intermodulation Distortion (IMD): (60 Hz and 7 kHz at 4:1)
Less than 0.5% at rated power to 30 dB below rated power at
8 ohms.
Page 52
CE 4000 The amp with an Attitude!
Reference Manual
CE 4000 The amp with an Attitude!
Damping Factor: Greater than 1000 from 10 Hz to 400 Hz.*
Crosstalk: Better than 50 dB below rated power, 20 Hz to 20
kHz.
Common Mode Rejection (CMR): Better than 70 dB from 20
Hz to 1 kHz.
DC Output Offset (Shorted Input): ±10 mV.
Controls & Connectors
Level: A detented rotary level control for each channel located
on the front panel.
Power: An on/off rocker switch located on the front panel.
Mode: Turn power off before switching. A two-position switch lo-
cated on the back panel below the input connectors which, when
turned to stereo, operates the amplifier as two independent chan-
nels. When "Bridge-Mono" mode is selected, the amplifier bridges
the two output channels for twice the output voltage.
Sensitivity: A three-position switch located on the back panel
next to the Mode switch. Switchable among 0.775 volts or 1.4
volts for full output into an 8-ohm load (default setting), or 3.46
volts for a fixed voltage gain of 26 dB.
Fault Jack: A back-panel RJ11 jack that may be remotely moni-
tored to signal amplifier Fault condition. An LED or other signalling
device (not supplied) may be used.
Filter Switches:
Low Pass: A three-position switch for each channel
located on the back panel below the input and output
modules. Switchable among settings for Flat, 80 Hz and
100 Hz. Filter rolloff is 24-dB per octave.
High Pass: A four-position switch for each channel
located on the back panel below the input and output
modules. Switchable among settings for Flat, 30 Hz, 40 Hz
and 50 Hz. Filter rolloff is 18-dB per octave.
Indicators
Signal: A green LED for each channel which flashes when a
very low-level signal (>–40 dBm) is present at input. May be
used for troubleshooting cable runs.
* Measured using binding-post output connectors.
Reference Manual Page 53